installing an oil pump pick-up tube

Kacy

Member
There was no noise before the pump replacement, we rechecked the only rod we took loose to inspect bearings. No issue found. Others have stated they have a sound like a click and maybe that is a better description than a rod knock but it is loud enough to be concerning. I'll get you a video.
 

Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member


READ CAREFULLY

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this gear must not bind on the distributor too oil pump drive shaft when the distributor is seated firmly on the intake manifold and clamped into place there must be about .050 clearance minimum, if there is not that could cause a clicking noise
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Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member
maybe its the videos audio, but I can't hear much but the exhaust rumble and maybe a minor header gasket leak
 

Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member
looks like the wrong (too short of a bolt was used) and torqued into the block threads to secure the oil pump,
stripping & cracking the block threads

failure to use the correct oil pump, mounting stud, bolt or nut or carefully check clearances when mounting an oil pump can cause problems, use of too short a bolt can strip the main cap threads, if its too long it may damage the rear main bearing, use of studs avoid both potential issues.
at least one bright point is its only the rear main cap thats damaged and while its a P.I.T.A. to find and replace, the blocks not trash

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ONE RATHER COMMON MISTAKE IS USING THE WRONG OIL PUMP STUD OR BOLT TO MOUNT THE OIL PUMP AS IF EITHER EXTENDS THRU THE REAR MAIN CAP,(like the picture shows below) IT CAN AND WILL BIND ON THE BEARING AND LOCK OR RESTRICT, SMOOTH ROTATION
oil%20pump%20stud.jpg
 
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Kacy

Member
Something bad happened to that cap. We had to run a tap through it to be able to put a bolt in without the pump in place. I think it was cross threaded and no one noticed. I have a new stud in the way, will pick up some red lock tite and see what we get. The filter by pass was removed and plugged at the last rebuild so no metal should have made it into the engine.
 
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Kacy

Member
Grumpy how do you get all the parts out for the bypass in the pump? I cannot get the Piston to come all the way out.
 

Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member
removing the oil pump piston, from the oil pump is not required, youll want too, remove only the spring and pin retaining the spring or threaded plug retaining the spring should be removed, as they might get damaged when brazing . or tig welding the oil pump pick-up to the pump, the piston is steel and will not be affected, unless you get crazy with the torch


read through the link
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